Back in 2014 the guys from Aerocool introduced their Dead Silent fans series featuring two basic models – Dead Silent 12cm and Dead Silent 14cm. Both of the products are made with several interesting features including FDB (Fluid Dynamic Bearing), fan propeller with golf ball design, 2-IN-1 silencer block and anti-vibration pads and the world’s first dual-layered fan blades. In addition to the two basic models, there are 4 different colour schemes:
- Black Edition
- Blue Edition
- Red Edition
- White Edition
To conduct this test and review I was provided with DS120 Red edition and DS140 White edition, which arrived partly hidden behind a very colourful carton cover inside a standard for the DS series transparent plastic package with two parts connected to each other. On the front side of the carton covers there are some details regarding the models and the available colour schemes, plus detailed explanation of the main technologies used so these fans can be created.
|Aerocool DS120 Red||Aerocool DS140 White|
Of course the full technical specifications, some details written in several languages and description of the provided additional accessories are located on the back side of the carton covers inside the plastic packages.
I believe the time has arrived to put the packages aside and check what is hidden inside – most of all the fan structure.
Aerocool DS120 Red and DS140 White STRUCTURE
To continue the article I would like to mention that actually both of the fans offer similar structure and the only difference are the dimensions. Of course, that includes very attractive and pretty solid frame structure and high tech propeller design.
So let’s pay attention to the fan structures.
|Aerocool DS120 Red front view||Aerocool DS140 White front view|
Both of the fans are designed with very solid, entirely black, matte, plastic, square frames with dimensions of 120 x 25 for the DS120 version and 140 x 25mm for the big brother in the series – DS140, which I believe is a pretty common feature for a lot of the fans from different brands on the market. But the thing which is not very common are actually the attached to each corner of the frames noise dampening anti-vibration system, which features 2-in-1 silencer block and anti-vibration pads made to further reduce the noise from the spinning fans.
Also the 2-in-1 silencer block and anti-vibration pads are pre-installed on the frames in a way that I will not recommend to be removed since it may damage the rubber itself.
|Aerocool DS120 Red LEDs view||Aerocool DS140 White LEDs view|
The frames themselves look very aggressive and at the same time pretty attractive but to boost the overall stance of these models inside every modern case the guys from Aerocool added 4 pretty bright LEDs on each side of the fans.
Of course, for DS120 the LEDs are red, while for DS140, as you’ve already guessed, they are white.
|Aerocool DS120 Red back view||Aerocool DS140 White back view|
In addition to the pretty solid and very good looking frames, both of the fans are equipped with almost the same massive and very aggressively looking propellers. Aerocool DS120 is equipped with an entirely painted in bright red propeller with 9 pretty narrow and very sharply angled blades, while the DS140 offers again 9 very sharply angled but a bit wider than the DS120’s blades. The propellers themselves are designed based on two very interesting technologies:
- The world’s first dual-layered fan blades – combination of plastic and rubber located on the front of the fan blades to absorb the “Wind” noise.
- “Golf Ball” surface design on the back side of the fan blades to minimize the air turbulence.
The connection between the frames and the propellers for both of the fans is done via 3-pin powered and regulated fan motors, which includes Fluid Dynamic Bearings to deliver long fan life of up to 100,000 hours of constant operation.
With these motors the fans are able to operate and provide:
- DS120 is made to operate at maximum 1200 ±10% revolutions per minute, delivering airflow level of 92.9 cubic metres per hour, static pressure level of 1.48 mm H2O at noise level of 15.8dBA. If the included 7V voltage reduction 3pin adapter is used the fan is going to operate at maximum 800 ±10% revolutions per minute, delivering airflow level of 62.2 cubic metres per hour, static pressure level of 0.99 mm H2O at noise level of 12.1dBA.
- DS140 is built to operate at 1000 ±10% revolutions per minute, providing airflow level of 109.8 cubic metres per hour, static pressure level of 1.21 mm H2O at noise level of 14.2dBA. Of course, if the included 7V voltage reduction 3pin adapter is used the fan is going to operate at maximum 700 ±10% revolutions per minute, delivering airflow level of 62.2 cubic metres per hour, static pressure level of 0.74 mm H2O at noise level of 10.8dBA.
Both of the fans are made to be powered and regulated via pretty long entirely sleeved in black mesh 3-pin cables and connectors.
Aerocool DS120 Red and DS140 White ADDITIONAL ACCESSORIES
Both fans arrived with absolutely identical packages in terms of dimensions and of course absolutely identical accessories pack. So let’s put the fans aside and check the additional accessories added in the boxes.
|Aerocool DS120 Red accessories||Aerocool DS140 White accessories|
The accessories packs offer:
- One set of 4 rubber pins to attach the fans to the case fan slots
- One set of 4 metal installation screws to attach the fans to the case fan slot
- One 3pin To Molex 4pin Adapter
- One 7V Voltage Reduction 3pin Adapter
I assume it is time to install the two fans on my test stand and check how they will perform.
Aerocool DS120 Red and DS140 White TESTS
The tests will be conducted in my standard way. I will install the fans and test them at 5V/7V/9V/12V and my goal will be to check the performance of the products in real conditions. They will be tested under close-to-perfect conditions, not taking into account any external factors. The results achieved during the test can in no way be the same if the models are mounted on a cooler or on the case fan slot of any modern computer case. I will measure the amount of air going through the fans for one hour and their speed. For this I use a fan controller, a voltage meter, an anemometer and a stand made specifically for this purpose.
And this is what the fans look like installed on my test stand:
The test results are shown in the following charts:
Airflow through the fans at 5V, 7V, 9V, 12V
Propellers rpm during the tests at 5V, 7V, 9V, 12V.
The anemometer showed the following air speed passing through the propellers:
After mounting the fans onto the stand, and leaving them to rotate for about 30 minutes at maximum speed, it was time for the tests to begin.
As with my other tests, again I started with a gradual increase of the voltage through the Lamptron FCT starting at 0V and both of the fans made at least one stable revolution per minute at about 5V, while the LED backlights started blinking at about 3.5V and became stable at 5V.
Test at 5V:
At the first test, which was conducted at exactly 5V, DS120 was rotating at 690 revolutions per minute, providing airflow level of 57.6 cubic metres per hour, while DS140 was rotating at 600 revolutions per minute with airflow level of 54.24 cubic metres per hour. Both fans were completely silent.
Test at 7V:
At the second test, performed at 7V, DS120 was rotating at 840 revolutions per minute, providing airflow level of 71.52 cubic metres per hour, while DS140 was rotating at 765 revolutions per minute with airflow level of 69.6 cubic metres per hour. Both of the fans remained silent.
Test at 9V:
At the third test conducted at 9V, DS120 was providing airflow level of 89.28 cubic metres per hour at 1005 revolutions per minute, while for the DS140 the airflow level was 83.52 cubic metres per hour, while rotating at 930 revolutions per minute. At the third test both of the fans started generating a tiny noise coming out of the air passing through the propellers.
Test at 12V:
At the last test conducted at 12V, both fans delivered their maximum performance, which for DS120 was airflow level of 105.12 cubic metres per hour at exactly 1200 revolutions per minute, while for DS140 it was 108 cubic metres per hour, while rotating at 1110 revolutions per minute. At this test, both of the fans became a bit noisier and in addition there was a tiny noise from the motors added to the whole noise environment.
Aerocool DS120 Red and DS140 White CONCLUSIONS
1. Aerocool DS120 Red and DS140 White Performance:
I believe I’ve spent some quality time having fun with both of the models from the Dead Silent series and to be honest I really like what I saw.
Both of the fans offer pretty innovative and high-tech structure featuring several very interesting technologies, which are combined together with one purpose only: to deliver pretty good cooling capabilities when the fans are installed on a case fan slot to boost the overall airflow and decrease the noise level inside every modern case and keep all of the hardware inside working cool, stable and quiet. Of course, both of the models can be also used as main cooling units for CPU coolers or water cooling radiators compatible with 120 or 140mm fans and they will definitely provide reliable performance for normal daily usage and low to middle range overclock experience. Of course, for extreme overclock performance the airflow and the static pressure levels provided by these models just might not be enough.
Apart from that, during the tests at 5 and 7V both of the models from the Dead Silent series were absolutely quiet, while at 9V tests they were generating some noise from the air passing through the propeller. At maximum operational voltage they also started generating a noise from the fans motors. When the fans were set to operate at automatic regulation I can say they maintain a very good performance/noise level.
2. Aerocool DS120 Red and DS140 White Appearance:
In addition to the very good cooling performance, both of the fans offer very aggressive and at the same time really eye catching structures, which are also boosted by the additional pretty bright four LEDs located on each side of the frames delivering a steady backlight. I can say that both of them provide a great visual effect that can make every modern case a real masterpiece.
I think both of Aerocool DS120 Red and DS140 White deserve the following award:
Aerocool DS120 Red has been added to the 120mm fans catalogue.
Aerocool DS140 White has been added to the 140mm fans catalogue.
Official price (MSRP): Aerocool DS120 Red: 14.55 eur
Official price (MSRP): Aerocool DS140 White: 16.55 eur
Warranty: 24 months
I thank Aerocool for the test samples.